#include <stdio.h>

int main()
{
	int sum = 0;
	int a = 6,b = 7,c = 8,d = 9;	
//	sum = a + 6,b = b + 7,c - 1,d = c + 2;
    sum = (a + 6,b = b + 7,c - 1,c + 2);
	
	printf("a == %d\n",a );    // 6
	printf("b == %d\n",b );    // 14
	printf("c == %d\n",c );    // 8
	printf("d == %d\n",d );   // 9
	printf("sum == %d\n",sum );  // 10
	return 0;
}

